Before you get to it you should level the bathroom the kitchen and or the hallway walls.
Rendering walls for tiling.
For additional safety tiling rendering will waterproof your flooring and walls.
We are in the process of doing our bathroom because for the old plasters condition we have removed back to brick.
If you decide to tile over the render do not pva it as all the tiles will fall off eventually see previous threads for reasons.
This includes kitchens bathrooms and laundry rooms.
Tiling over plasterboard involves adhering tiles to a paper surface and although this will present little problem in dry areas if the wallboard is subjected to moisture it may deteriorate causing failure.
Since the tiled surface will not absorb water you need not worry about water seepage in your flooring or your walls.
A tiled floor is a blessing in rooms that are exposed to water usage.
A reasonable level of expertise is required for rendering as it is very difficult for a first timer.
If walls are to be painted you will need to apply another coat of top coat followed by a good sand.
If anything flick plenty of water on the area just before tiling.
I have tiled over rendering before but it was a small area 3 sq.
Hi firstly i am a plastering rendering amateur only hard walling up to this point.
3 walls are your standard house brick and the 4th is an internal wall made of black 35mm thick air brick nasty stuff but not an option to remove.
If tiling the walls you won t need to do any more top coats or base coat preparation.